Lappet-loom.



N0. 637,l29. Patented Nov. l4, I899.

G. KINSBDURG.

LAPPET LOOM.

[Application filed Aug. 28, 1897.) (No Model.) 3 Sheets-Sheet l.

m: Norms rrrzns co. mom-urns WASHINGTON. o c.

Patented Nov. l4, I899. G. KlNSBOURG.

LAPPET LOOM.

(Application filed Aug. 28, 1897.

3 SheetsSheet 3,

(No Model.)

FIGX)- UNITED STATES PATENT OFFICE.

GEORGES KINSBOURG, OF REMIREMONT, FRANCE.

LAPPET-LOOM.

SPECIFICATION forming part of Letters Patent No. 637,129, dated.November 14, 1899.

Application filed A ust 28, 1897- Serial No. 649,809. (No model.)

To aZZ whont it may concern.-

Be it known that I, GEORGES KINSBOURG, manufacturer, of Remiremont,Vosges Department, in the Republic of France, have invented newImprovements in Lappet-Looms forWeaving Figured Fabrics, (for which Ihave obtained Letters Patent of France for fifteen years, No.267,058,dated May 18,1897 and I do hereby declare that the following isa full and exact description thereof, reference being made to theaccompanying drawlngS.

It is known that in the manufacture of broch goods the design is made bypassing the thread which is to form the said. design over certainthreads of the weft and under all the others, the said broch threadextending from one point to another on the wrong side of the cloth.Heretofore this operation has been done either by hand orwith devicesallowing of making only one type of de-' sign on one and the same loom.

This invention relates to an improved apparatus called a broch lathe andwhich can be adapted to either a hand or power loom and which allows ofvarying at will the designs without having to change any of the parts ofthe said loom. One and the same design can also be reproduced on anyscale and be enlarged or reduced as the operation is being proceededwith. In order to insure this double result, I adapt onto the ordinarylathe of the loom a second lathe or lathe for broch goods, which has anupward and downward movement imparted to it during the operation. Theupper horizontal piece of this lathe placed under the warp-threads ofthe cloth carries a series of vertical needles, through which pass thebroch threads, the assemblage of which is parallel to that of thewarp-threads and situated under the latter. When the broch lathe is inits uppermost position, the needles are engaged between thewarp-threads, and the assemblage of the broch threads is also raised up,so that if at this moment the shuttle is put in motion theweft-threadwill be passed under all the broch threads, which will thusbe caught in the cloth. As soon as the brochlathe moves down its pinsare disengaged from the warpthreads and the piece which carries them isthen moved aside,whereby each needle jumps over a certain number of warpthreads, the result being that when the upward movement again takesplace the fresh broch stitch made by each needle is situated a certaindistance to the right or left of the foregoing stitch. These lateralmovements of the piece carrying the needles are obtained by means of awheel the rim of which is provided With pins of varying lengths. At eachstroke of the lathe one of the said pins comes and acts laterally on-theend of a lever having a fixed fulcrum and jointed at its opposite end tothe comb of the broch lathe. It will thus be understood that the longeror shorter the pin the lever will oscillate more or less and the combwill be displaced to a greater or less extent, whereby each broch threadmay be caused to make a predetermined design by arranging beforehand thelength of the different pins on the rim of the operating-wheel, the saiddesign being, moreover, the same of all the broch threads. It willalsobe understood that by displacing the oscillating center of the leverwhich controls the movements of the comb of the broch lathe the sameseries of operating-pins may be made to produce the same designs on thecloth, but reduced or enlarged, the lever then operating as apantograph. Hence in order to change the size of the broch design allthat is needed is to change the oscillating center of the lever, and inorder to change the form of the design the length of the pins ischanged, an operation which is readily and easily done by screwing orunscrewing the said pins in the rim of the wheel which carries them, thepins thus moving inward or outward in a radial direction.

I have shown in the accompanying drawings the application to a loom ofthe broch lathe I have invented.

In the said drawings, Figure l is a back view in elevation of the saidlathe. Fig. 1 shows a detail. Fig. 2 is a sectional view on the line 1 2of Fig. 1 as seen from the right, and Figs. 3 and 4 show one part of theoperation of the lathe.

My broch lathe comprises a frame or support a g k 10, fitted onto theuprights B of the ordinary lathe in such a manner as to be able to slidevertically in the said uprights while being carried along by the latterwhen moving. In the application shown in the drawings the ordinary latheis pivoted at its lower part, so that the comb is at its upper part.

The upper cross-piece a of my broch lathe is arranged below and in frontof the bottom A of the lathe of the loom and receives on its back face apiece I), which carries the needles 0 of the broch threads. The saidneedles, placed in front of the bottom A, project beyond the upper faceof the latter in the uppermost position of the broch lathe, as shown inFigs. 1, 2, and 3 of the drawings, and then descend below the level ofthe said bot-tom, when the beating takes place, as also shown in Fig. 4.The piece I) is provided with two horizontal slots 01 (l, in which passthe stems of two screws (1 d, screwed in the cross-piece a, and in theprojection on the back face of the piece I) is also a pin 6, whichenters the slotted or bifurcated end of a vertical oscillating lever f.

There only remains to be shown how I communicate the upward and downwardmovement to the broch lathe as a whole and the lateral variable movementto the piece Z7 of the needles. To insure this twofold result, I fixonto a second horizontal cross-piece g of the broch lathe a simplifiedjacquard mechanism j, having only two needles or liftingwires 1 and 2.To wire 1 are suspended two connecting-rods h h, hooked at theiropposite ends to one of the arms of the leversl and 1, having a fixedfulcrum 0, and jointed at i and 71 of the uprights k and 7c of the brochlathe. To the other wire 2 is hooked a small chain or rod an, attachedat its opposite end to the controlling-lever m of a pawl 17.. On theother hand, a yoke 19, fixed to the lower horizontal cross-piece p ofthe broch lathe and to the frame of the mechanism j, carries ahorizontal rotatory shaft g, on which are fixed a ratchet-wheel r behindand operated by the pawl n and then a second wheel 5, carrying on itsrim the pins t, radially arranged, and the projection of which can beincreased or decreased by unscrewing or screwing the same, and in fronta depression-wheel it, against the rim of which is constantly pressed,by a spiral spring 10, a stop M the head of which is housed in thedepressions of the wheel to and holds the shaft q fast after eachpartial rotation of the same. Lastly, the oscillating lever f revolveson a spindle f, pivoted on the upright of the broch lathe. The saidlever f, the upper bifurcation of which embraces the pin 6, carried bythe piece I), is provided at its lower part with the curved sprattle orhorn f constantly held pressed against the ends of the pins 25 by thetension of the springf fixed at one end to the upper arm of the leverandat its opposite end to the upper cross-piece a and at a certain point ofthe latter.

The relative lengths of the arms of lever f can, if desired, be changed,for example, by removing nut f, Fig. 1, from the pivot f andtransferring the pivot up or down to an other hole f or by othersuitable means.

Whether the loom is operated by power or by pedals, a partial movementof rotation of about one-fourth of a revolution is transmitted either bysuitable means or direct to the horizontal shaft 3' of the jacquardmechanism for each beating stroke of the 100m This movement causes thegriffe or ram 0 of the mechanism to rise. The cards which unwind fromthe roller J cause the needles 1 and 2 to be carried along by the ram,and consequently the raising of the rods h, h, and m. The fulcrum o ofthe levers Z and 1 being fixed to a suitably-supported standard 0' andthe smaller arms of the said levers being raised, the greater arms arelowered, carrying with them the whole of the broch lathe in theirdownward movement. As soon as this latter movement begins the needles 0of the broch threads become disengaged from the warp-threads, and thepawl a forcing at this moment the ratchet-wheel r, and consequently theshaft q, to turn one of the pins t of the wheel 3 pushes the lower armof the lever f, and the said leverf oscillates and carries with it inits lateral movement the piece I? and the needles 0. As soon as therotation of the shaft j ceases the downward movement of the broch lathestops, as well as the horizontal movement of the piece I). The spiralsprings V and V, which have become compressed between the cross-piece gof the broch lathe and the lugs 00 on the uprights B of the ordi narylathe, open and bring the broch lathe back to its uppermost position andthe ram of the mechanism to its lowermost position. The tension-spring fcauses the piece I) of the needles 0 also to move back and the lever fto press on the following pin t of the wheels 3.

The perforations of the cards of the jacquard mechanism allow of raisingsimultaneously both of the wires 1 and 2, or simply wire 1. When wire 2is not raised, each broch thread makes successive stitches placed in thesame line parallel to the warp-threads.

In any case all the broch threads make simultaneously the same design inthe cloth. In order to enlarge the said design, all that is needed is tolower the oscillating centerf of the lever f, which increases the lengthof the upper arm of the said leverand decreases the length of the lowerarm of the same. Inversely, to reduce the broch design the center ofoscillation f of the lever f is raised.

Figs. 3 and 4 show the positions of the broch threads when the brochlathe is in its uppermost and lowermost positions. When the said latheisin the former position, the broch threads 3 are raised and are nearly inline with the upper assemblage 4 of the warp-threads. A stroke of theshuttle is then given, and the weft-thread 5 lies under the warp-threads4:, under all the broch threads 3, and above the second assemblage 4: ofthe warp-threads, the broch lathe moves down again, the beating of thecloth takes place,

and theassemblage 3 of the broch threads, as well as the assemblage 4 ofthe warpthreads, lie at the lower part, while the assemblage 4: of thewarp-threads lie at the upper part. If then a stroke of the shuttle isgiven, the weft-thread 5' comes up above all the broch threads, thebeating is done, the broch lathe comes up again, and so on. When it isrequired to stop the operation of the broch threads,while continuing theweav= ing of the cloth, the broch lathe is brought by hand to itslowermost position and then fixed there by any suitable means. Theoperating parts of the jacquard mechanism are put out of movement at thesame time.

Such is the simple apparatus, which can be applied to any system of loom.and which al lows of making the broch goods of all sorts of designs,theform and size of which can be readily varied, without having tochange any of the parts of the said apparatus.

I reserve to myself the right of varying at will the forms, thematerials, and the dimensions of the different organs of my lathe withdrop-box for broch goods and of completing the same by any suitableoperating or transmitting device according to the types of power or handlooms to which the said lathe may be applied.

I claim 1. The combination with the lathe of aloom and the frame Bthereof, of a broch lathe comprising a vertically-movable frame,thebroch lathe being carried by and vertically movable with the frame B,bar I), broch needles 0 car ried thereby, said bar 19 being fixed to thetop of the broch lathe but being movable to the right and left, and ajacquard mechanism having two hooks or wires 1, 2, levers Z, Z piv' otedto the broch frame, a fixed pivot for said levers, means for connectingsaid levers on the opposite side of their fixed pivot from theconnection to the broch frame of wire Z, a pattern-wheel s with pins 6,a propelling-pawl m, and a connection between said pawl and wire 2,substantially as described.

2. In a loom a broch lathe comprising in combination a framework a, g,70, it, p, capable of sliding vertically, beams B, B on which saidframework slides, a piece 11 carrying the needles of thestitching-threads, piece I) being movable to the right or left onthepart a of said framework, an oscillating lever f, apivot f adjustable asto height, a support Z0 a wheel 3 provided with radial pins t more orless screwed into holes in the wheel 8, a jacquard mechanism having twohooks or wires 1, 2, levers Z, Z pivoted on the fixed axis 0 and jointedat 2,71 on the pieces k, k of the frame, devices h, h connecting saidlevers to the hook or wire 1, a pawl m controlled by the hook or wire 2,and a ratchet-wheel r.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

GEORGES KINSBOURG. Witnesses:

EUGENE WATTIER, GEORGES BORDEAU.

